19919361

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1627}}^1$

素因数の和:1701

約数の個数: 32

約数和(自身を含む): 33758208

約数和(自身を除く): 13838847

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1627, 1749, 4081, 4881, 11389, 12243, 17897, 34167, 53691, 86231, 125279, 258693, 375837, 603617, 948541, 1810851, 2845623, 6639787, 19919361]

約数ペア:

[(1, 19919361), (3, 6639787), (7, 2845623), (11, 1810851), (21, 948541), (33, 603617), (53, 375837), (77, 258693), (159, 125279), (231, 86231), (371, 53691), (583, 34167), (1113, 17897), (1627, 12243), (1749, 11389), (4081, 4881)]